Resolving a protest challenging a past performance evaluation, GAO is deferential to the agency’s determinations. It is primarily concerned with whether the evaluation was conducted fairly and in accordance with the solicitation’s evaluation criteria; if so, GAO will not second-guess the agency’s assessment of the relevance or merit of an offeror’s performance history.
For protesters, therefore, challenging an agency’s past performance evaluation can be difficult. But a recent decision makes clear this task is not impossible—GAO will sustain a protest challenging a past performance evaluation if the agency treats offerors differently or unfairly, such as by more broadly reviewing the awardee’s CPARs than the CPARs of the protester.
